fix: accept non-hex alembic revision ids

deploy/test-production-bootstrap.sh

@@ -49,7 +49,7 @@ if ! ALEMBIC_HEADS_OUTPUT=$($compose exec -T api alembic heads 2>/dev/null); the
   exit 1
 fi
 # Extract revision IDs (first field before space or '(head)'), handle multiple heads
-ALEMBIC_HEAD=$(echo "$ALEMBIC_HEADS_OUTPUT" | grep -oE '^[a-f0-9]+' | head -1)
+ALEMBIC_HEAD=$(printf '%s\n' "$ALEMBIC_HEADS_OUTPUT" | awk 'NF {print $1; exit}')
 DB_VERSION=$($compose exec -T db psql -At -U rf4 -d rf4_spotter -c 'select version_num from alembic_version')
 
 if [ -z "$ALEMBIC_HEAD" ]; then
@@ -63,10 +63,10 @@ if [ -z "$DB_VERSION" ]; then
 fi
 
 # Handle multiple heads: check if DB version matches any head
-HEAD_COUNT=$(echo "$ALEMBIC_HEADS_OUTPUT" | grep -cE '^[a-f0-9]+') || HEAD_COUNT=0
+HEAD_COUNT=$(printf '%s\n' "$ALEMBIC_HEADS_OUTPUT" | awk 'NF {count++} END {print count+0}')
 if [ "$HEAD_COUNT" -gt 1 ]; then
   echo "WARNING: Multiple Alembic heads detected ($HEAD_COUNT), checking if DB version matches any..."
-  if ! echo "$ALEMBIC_HEADS_OUTPUT" | grep -q "^$DB_VERSION"; then
+  if ! printf '%s\n' "$ALEMBIC_HEADS_OUTPUT" | awk '{print $1}' | grep -Fxq "$DB_VERSION"; then
     echo "ERROR: DB version $DB_VERSION does not match any head. Heads: $ALEMBIC_HEADS_OUTPUT" >&2
     exit 1
   fi